support for tmc2130

[frankdunn]

Hi , I am looking at using tmc2130 drivers with a 3 axis engraver . Would it conflict with any hardware if I add a hardware spi port on the bluepill ? The hardware pins does not conflict with any pins I need : /**SPI1 GPIO Configuration
PB3 ------> SPI1_SCK
PB4 ------> SPI1_MISO
PB5 ------> SPI1_MOSI
*/
pc13 , pc14 , pc15 would be chip select for x , y , z .

[robomechs]

Any results? ))